Lock and latch.



"UNITED STATES PATENT onmon.

HEN RY G. VOIGI'IT, OF NEW BRITAIN, CONN EOTIGUT, ASSIGNOR TO RUSSELL & ERWIN i\I. \NUF.-\("IURING COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

LOCK AND LATCH.

Specification of Letters Patent.

Patented June 30, 19818.

Application filed April 3, 1908. Serial No. 424,874.

To all whom it may concern:

Be it known that I, HENRY 'G. Vorenr, a citizen of the United States, residing at New Britain, county of Hartford, State of Connecticut, have invented certain new and useful Improvements in Locks and Latches, of which the following is a full, clear, and exact description.

My in'vention relates to improvements in looks and latches, particularly useful in connection with French windows and the like, in which it is desired to have both a latch bolt and means whereby the window or door may be securely locked. By my improvement I have combined in such a device both a latch .and locking mechanism which is operable through the medium of a single operatingdevice or handle.

I have shown the preferred form of my invention in the accompanying drawing, in which-the single figure is a side elevation of such a lock, with the cover plate removed, the ends of the locking bolts being broken away and shortened.

In the drawing, 1 represents aface plate, 2

v the lock case, 3 the latch bolt, 4-4 the dead bolts or looking bolts.

5 is the roll-back carryin two arms 5 5. 6 is the hub of a second ro l-back, the same being mounted to rotate independently of the roll-back 5.

6 is the roll-back arm on hub 6. 7 is an abutment on the hub 6 standing in the pathof one of the arms 5*. v

4 et are corresponding tails or slides on the dead bolts 44. Each of these slides is rovided with a recess to receive the rollack arms 5?, and with the oppositely inclined shoulders at each side of said recess, the same bein designed to receive the ends of the l'oll-bac lr arms 5 to hold the bolts 4 extended or retracted. In the drawings, the bolts 4 and slides 4* are shown in the retracted position.

3 'is a lever ivotally connected at one end to the tail oi the latch bolt 3 and at its other end to the lock case 2, as indicated at 3*. A spring-3. normally swings the lever 3 in a direction to project the latch bolt 3.

8 is a spring arranged to irictionally cooper ate with one of the arms 5 to hold the rollings, stands opposite the notch in said slide whereby when the corresponding arm of the roll-back 5 rests on one side or the other of said hum it willbe frictionally held againstv accidenta displacement, the drawing show ing the roll-back 5 being held against accidental displacement inthat position in which the locking bolts 4 are retracted.

9 is a dogging device arranged to be operated by a key adapted to pass through the key-hole 10., In the adjacent slide 4 of one of the locking bolts, a suitable notch or notches are formed, as shown, to receive the dog 9, the function of said dog being to positively block the slides 4 against movement. The slides, dog and various arts of the mechanism are supported in an by the lock case or front plate 1 thereof. In the particular form shown, the hub 6 is rotatably su ported directly uponthe hub of the roll-bacl c 5, this being a convenient and economical construction.

11 is a stop shoulder in the lock case to the rear of the roll-back arm 6*.

12. is a spring-pressed stud carried by the lock case and adapted to bear in notches in the dog 9, said stud representing one convenient means for preventing the accidental displacement of the dog in either its dogging or non-dogging position. In the drawings the dog 9 is shown as retracted.

Operation: \Vith the parts as. shown in- Fig. 1, if the roll-back 5 is rotated'clockwise,

it will have no effect upon the locking bolts 4-4, but itwill engage the abutment 7 and rotate the roll-back'hub 6 and arm 6 in a similar direction and so that said arm 6' will engage the lever '3 so as to withdraw the latch bolt 3. Upon releasing thenhub 5, the spring 3 will restore these parts to their normal position shown in the'drawings. If it is desired to lock the door, theuser has but to rotate the hub 5 in a reverse direction, whereupon one of the arms 5 will first repress spring 8. By that time both arms will have entered their corresponding notches in the slides 4 4. And further, movement of the roll-back 5 will, cause both of said arms 5 to move the slides 4 in a direction to project the locking'bolts 4. This is continued until the arms 5 stand in a position at right-angles to that indicated in the drawing, whereuponthe bolts 4 will be fully projected and the arms 5 will bear against the opposite in clines on the respective'slides so as to hold the bolts projected. At this time if it is desired to prevent any possibility of opening I means for interlocking said roll-backs when the door, the dogging device 9 may be projected, advancing the same into the uppermost of the two corresponding notches shown at the inner edge of the adjacent slide 4*, the spring-pressed stud 12 being pressed back during this movement of the dog 9.

This reverse movement of the roll-back 5 does not disturb the position of the roll-back 6, since the a m 5, shown as adjacent to the abutment 7, moves in a direction away from the latter. Suitable keeper plates are, of course, employed to' receive the locking bolts 4. In the preferred construction there are two of such bolts employed.

What I claim is:

1. In a lock and latch mechanism, a latch bolt, a locking bolt, a roll-back ,for each, means for o erating the roll-back adapted to the latch b0 t to control the latter, said latch bolt roll-back being controlled through the medium of the roll-back for the locking bolt.

2.. In a lock and latch mechanism, a latch bolt, a locking bolt, two concentrically mounted but independentl, rotatable roll- .backs, one for the locking bolt-and one for the latch bolt, and means for operating the roll-back adapted to the latch bolt to control the latter, said means being dependentupon the operation of the first mentioned roll-back.

3. In a lock and latch mechanism, a latch bolt, a locking bolt, a roll-back for each, oneof said roll-backs being rotatable independently of the other, the other roll-back being rotatable dependently with the first.

4. In a lock and latch mechanism, a latch bolt, a locking bolt, a roll-back for each, said roll-backs being mounted one on the other but capable of independent rotation, means for operatively connecting one of said rollbacks With the locking bolt, and means -for operatively connecting the same roll-back with the second roll-back for operating the latch bolt.

5. In a lock and latch mechanism, a latch bolt, a locking bolt, a roll-back for each,

one of themis rotated in one direction for operating the latch bolt, one of'said rollbacks being operable independently of the other when rotated in' a reverse direction to operate the locking bolt.

6. In a lock and latch mechanism, a springactuated latch bolt, a roll-back therefor, a locking bolt, a roll-back therefor, said last mentioned roll back being operable independently of the other, the other roll-back being operable through the medium of the first by the rotation of the same in one direetion;

'7. In a lock and latch mechanism, a latch bolt, a locking bolt, a roll-back for each, the latch bolt roll-back being rotatable and independently mounted on the locking bolt rollback, and an abutment on the latch bolt rollback arranged to be engaged by the locking bolt roll-back when the latter is rotated in one direction only whereby said rolLbai-hs may be coupled to operate the latch bolt 8. Ina lock and latch mechanism, a. spring- )ressed latch bolt, two oppositely arranged locking bolts, a two-armed roll-back adapted to advance and retract the lochingbolts, another rollback mounted thereon arranged to operate the latch bolt, and meansto couple said roll-backs when one of them is rotated in one direction, said roll-backs being uncoupled upon a reverse movement.

9. In a lock and latch mechanism, a lock bolt, a latch bolt, means for operating said bolts independently including independent roll-backs, means for operating one of said roll-backs to move it in either direction,

1 means to couple said roll-backs to move both simultaneously in one direction, and a dogging device cooperating with one of the aforesaid parts to hold said locking bolt against movement.

HENRY G. VOIGIIT. Witnesses:

R. O. MITcHELL, A. MoRFoRD. 

